"the jerseys are not yellow" is not accepted and neither is "the sports shirts are not yellow". Why is DL insistent on me calling maglie "shirts" when maglia is a "jersey". I've googled the images and all I see is sports shirts. When I enter the word camicia I see shirts with buttons so that is what I would call a shirt. I thought it was as follows; camicia (shirt with buttons), maglia (sports jersey), maglione (a jumper/sweater), maglietta (t-shirt).
Una maglia can be something like a long or short-sleeved T-shirt.
Two very famous and well-known examples of this are the T-shirts the leaders of the bicycle race Giro d'Italia and Tour de France gets. The italian is pink and called "la maglia rosa" and the French is yellow and called "la maglia gialla".